motion_est.c File Reference

---

Detailed Description

Motion estimation.

Definition in file motion_est.c.

Go to the source code of this file.

Classes
struct	Minima
Functions
static int	sad_hpel_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)
static int	update_map_generation (MotionEstContext *c)
static int	minima_cmp (const void *a, const void *b)
static void	init_ref (MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index)
static int	get_flags (MotionEstContext *c, int direct, int chroma)
static av_always_inline int	cmp (MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
	compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensated prediction of that block
static int	zero_cmp (void *s, uint8_t *a, uint8_t *b, int stride, int h)
static void	zero_hpel (uint8_t *a, const uint8_t *b, int stride, int h)
void	ff_init_me (MpegEncContext *s)
static int	pix_dev (uint8_t *pix, int line_size, int mean)
static void	no_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr)
static int	full_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int range, int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)
static int	log_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int range, int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)
static int	phods_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int range, int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)
static void	set_p_mv_tables (MpegEncContext *s, int mx, int my, int mv4)
static void	get_limits (MpegEncContext *s, int x, int y)
	get fullpel ME search limits.
static void	init_mv4_ref (MotionEstContext *c)
static int	h263_mv4_search (MpegEncContext *s, int mx, int my, int shift)
static void	init_interlaced_ref (MpegEncContext *s, int ref_index)
static int	interlaced_search (MpegEncContext *s, int ref_index, int16_t(*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)
static void	clip_input_mv (MpegEncContext *s, int16_t *mv, int interlaced)
static int	check_input_motion (MpegEncContext *s, int mb_x, int mb_y, int p_type)
void	ff_estimate_p_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
int	ff_pre_estimate_p_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
static int	ff_estimate_motion_b (MpegEncContext *s, int mb_x, int mb_y, int16_t(*mv_table)[2], int ref_index, int f_code)
static int	check_bidir_mv (MpegEncContext *s, int motion_fx, int motion_fy, int motion_bx, int motion_by, int pred_fx, int pred_fy, int pred_bx, int pred_by, int size, int h)
static int	bidir_refine (MpegEncContext *s, int mb_x, int mb_y)
static int	direct_search (MpegEncContext *s, int mb_x, int mb_y)
void	ff_estimate_b_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
int	ff_get_best_fcode (MpegEncContext *s, int16_t(*mv_table)[2], int type)
void	ff_fix_long_p_mvs (MpegEncContext *s)
void	ff_fix_long_mvs (MpegEncContext *s, uint8_t *field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)

---

Function Documentation

static int sad_hpel_motion_search	(	MpegEncContext *	s,
		int *	mx_ptr,
		int *	my_ptr,
		int	dmin,
		int	src_index,
		int	ref_index,
		int	size,
		int	h
	)			[inline, static]

Definition at line 565 of file motion_est.c.

Referenced by ff_init_me().

static int update_map_generation

(

MotionEstContext *

c

)

[inline, static]

Definition at line 53 of file motion_est.c.

Referenced by epzs_motion_search2(), epzs_motion_search4(), and epzs_motion_search_internal().

static int minima_cmp	(	const void *	a,
		const void *	b
	)			[static]

Definition at line 70 of file motion_est.c.

Referenced by sab_diamond_search().

static void init_ref	(	MotionEstContext *	c,
		uint8_t *	src[3],
		uint8_t *	ref[3],
		uint8_t *	ref2[3],
		int	x,
		int	y,
		int	ref_index
	)			[inline, static]

Definition at line 81 of file motion_est.c.

Referenced by encode_q_branch(), ff_estimate_b_frame_motion(), ff_estimate_p_frame_motion(), and ff_pre_estimate_p_frame_motion().

static int get_flags	(	MotionEstContext *	c,
		int	direct,
		int	chroma
	)			[static]

Definition at line 99 of file motion_est.c.

Referenced by ff_init_me().

static av_always_inline int cmp	(	MpegEncContext *	s,
		const int	x,
		const int	y,
		const int	subx,
		const int	suby,
		const int	size,
		const int	h,
		int	ref_index,
		int	src_index,
		me_cmp_func	cmp_func,
		me_cmp_func	chroma_cmp_func,
		const int	flags
	)			[static]

compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensated prediction of that block

Definition at line 108 of file motion_est.c.

Referenced by av_tree_find(), av_tree_insert(), check_input_motion(), CommDetector2::computeBreaks(), epzs_motion_search_internal(), ff_get_mb_score(), hpel_motion_search(), ProfileItem::IsMatch(), lt_smart(), main(), qpel_motion_search(), and small_diamond_search().

static int zero_cmp	(	void *	s,
		uint8_t *	a,
		uint8_t *	b,
		int	stride,
		int	h
	)			[static]

Definition at line 227 of file motion_est.c.

static void zero_hpel	(	uint8_t *	a,
		const uint8_t *	b,
		int	stride,
		int	h
	)			[static]

Definition at line 231 of file motion_est.c.

Referenced by ff_init_me().

void ff_init_me

(

MpegEncContext *

s

)

Definition at line 234 of file motion_est.c.

Referenced by encode_frame(), encode_picture(), and svq1_encode_plane().

static int pix_dev	(	uint8_t *	pix,
		int	line_size,
		int	mean
	)			[static]

Definition at line 303 of file motion_est.c.

static void no_motion_search	(	MpegEncContext *	s,
		int *	mx_ptr,
		int *	my_ptr
	)			[inline, static]

Definition at line 326 of file motion_est.c.

Referenced by ff_estimate_motion_b(), and ff_estimate_p_frame_motion().

static int full_motion_search	(	MpegEncContext *	s,
		int *	mx_ptr,
		int *	my_ptr,
		int	range,
		int	xmin,
		int	ymin,
		int	xmax,
		int	ymax,
		uint8_t *	ref_picture
	)			[static]

Definition at line 334 of file motion_est.c.

Referenced by ff_estimate_motion_b(), and ff_estimate_p_frame_motion().

static int log_motion_search	(	MpegEncContext *	s,
		int *	mx_ptr,
		int *	my_ptr,
		int	range,
		int	xmin,
		int	ymin,
		int	xmax,
		int	ymax,
		uint8_t *	ref_picture
	)			[static]

Definition at line 388 of file motion_est.c.

Referenced by ff_estimate_motion_b(), and ff_estimate_p_frame_motion().

static int phods_motion_search	(	MpegEncContext *	s,
		int *	mx_ptr,
		int *	my_ptr,
		int	range,
		int	xmin,
		int	ymin,
		int	xmax,
		int	ymax,
		uint8_t *	ref_picture
	)			[static]

Definition at line 464 of file motion_est.c.

Referenced by ff_estimate_motion_b(), and ff_estimate_p_frame_motion().

static void set_p_mv_tables	(	MpegEncContext *	s,
		int	mx,
		int	my,
		int	mv4
	)			[inline, static]

Definition at line 673 of file motion_est.c.

Referenced by ff_estimate_p_frame_motion().

static void get_limits	(	MpegEncContext *	s,
		int	x,
		int	y
	)			[inline, static]

get fullpel ME search limits.

Definition at line 700 of file motion_est.c.

Referenced by direct_search(), ff_estimate_b_frame_motion(), ff_estimate_motion_b(), ff_estimate_p_frame_motion(), and ff_pre_estimate_p_frame_motion().

static void init_mv4_ref

(

MotionEstContext *

c

)

[inline, static]

Definition at line 733 of file motion_est.c.

Referenced by check_input_motion(), and h263_mv4_search().

static int h263_mv4_search	(	MpegEncContext *	s,
		int	mx,
		int	my,
		int	shift
	)			[inline, static]

Definition at line 744 of file motion_est.c.

Referenced by ff_estimate_p_frame_motion().

static void init_interlaced_ref	(	MpegEncContext *	s,
		int	ref_index
	)			[inline, static]

Definition at line 880 of file motion_est.c.

Referenced by check_input_motion(), and interlaced_search().

static int interlaced_search	(	MpegEncContext *	s,
		int	ref_index,
		int16_t(*[2][2])	mv_tables[2],
		uint8_t *	field_select_tables[2],
		int	mx,
		int	my,
		int	user_field_select
	)			[static]

Definition at line 893 of file motion_est.c.

Referenced by ff_estimate_b_frame_motion(), and ff_estimate_p_frame_motion().

static void clip_input_mv	(	MpegEncContext *	s,
		int16_t *	mv,
		int	interlaced
	)			[static]

Definition at line 1015 of file motion_est.c.

Referenced by check_input_motion().

static int check_input_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y,
		int	p_type
	)			[inline, static]

Definition at line 1025 of file motion_est.c.

Referenced by ff_estimate_b_frame_motion(), and ff_estimate_p_frame_motion().

void ff_estimate_p_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

Definition at line 1161 of file motion_est.c.

Referenced by estimate_motion_thread(), and svq1_encode_plane().

int ff_pre_estimate_p_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

Definition at line 1428 of file motion_est.c.

Referenced by pre_estimate_motion_thread().

static int ff_estimate_motion_b	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y,
		int16_t(*)	mv_table[2],
		int	ref_index,
		int	f_code
	)			[static]

Definition at line 1481 of file motion_est.c.

Referenced by ff_estimate_b_frame_motion().

static int check_bidir_mv	(	MpegEncContext *	s,
		int	motion_fx,
		int	motion_fy,
		int	motion_bx,
		int	motion_by,
		int	pred_fx,
		int	pred_fy,
		int	pred_bx,
		int	pred_by,
		int	size,
		int	h
	)			[inline, static]

Definition at line 1574 of file motion_est.c.

Referenced by bidir_refine().

static int bidir_refine	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)			[inline, static]

Definition at line 1639 of file motion_est.c.

Referenced by ff_estimate_b_frame_motion().

static int direct_search	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)			[inline, static]

Definition at line 1736 of file motion_est.c.

Referenced by ff_estimate_b_frame_motion().

void ff_estimate_b_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

Definition at line 1838 of file motion_est.c.

Referenced by estimate_motion_thread().

int ff_get_best_fcode	(	MpegEncContext *	s,
		int16_t(*)	mv_table[2],
		int	type
	)

Definition at line 1997 of file motion_est.c.

Referenced by encode_picture().

void ff_fix_long_p_mvs

(

MpegEncContext *

s

)

Definition at line 2056 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().

void ff_fix_long_mvs	(	MpegEncContext *	s,
		uint8_t *	field_select_table,
		int	field_select,
		int16_t(*)	mv_table[2],
		int	f_code,
		int	type,
		int	truncate
	)

Parameters:

truncate

1 for truncation, 0 for using intra

Definition at line 2107 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().